Cooking and heating stove



} G H. PRESTON l COOKING AND HEATING sTovE Filed June -18', 1923 l l l JT ivm/Vak r M4/f WW ZO-fw Patented Bec. Z3, i924.

GEORGE HENRY PRESTON, 0F LONDON, ENGLAND.

COOKING AND HEATING STOVIE.

Application filed June 1S, 1923. Serial No. 646,177.

To all whom it may concern:

Be it known that GEORGE HENRY Pens TON, a subject. of the King of GreatBritain, residing at 3 vWillow Avenue, Barnes, London, S. W. 13,England, have invented new and useful mprovements in and Relating toCooking and Heating Stoves, of which. the following is a specification.

This invention relates to improvements in stoves for the purpose ofheating, baking, boiling, and hot water supply.

Hitherto with stoves of this description where an open Hre grate iscombined with an oven and boiler, it has been found necessary to use twoor three separate dampers for regulating the Hues leading from the firedirect to the chimney, to Ithe boiler, and to the oven.

In a combined stove of the before mentioned type, and according to myinvention, the canopy or like Hue adjuster of the open fire gratebesides regulating the Hue direct to the chimney is connected to andadapted to operate a damper for regulating both the oven and boilerHues.

In one example, the Hues leading from the boiler and the oven arebrought together or led to a divided damper box, or casing, so as to becontrolled by a single damper adapted to cover one or other of the saidHues, the said damper being connected to the canopy of the open stove soas to be operated thereby in such manner that when the canopy is closedto its minimum opening the boiler Hue is open and when the canopy isfully open or approximately so the oven Hue is open and the boiler Hueis closed.

Apart from the opening and closing of the boiler Hue by Ithe damper, theboiler is preferably so arranged as to be always exposed to the fire inthe Open grate so that the boiler is heated to a certain extent at alltimes.

The accompanying drawings show one construction of combined stove madein accordance wit-h this invention.

Fig. l is a front elevation.

F ig 2 is a plan, and

Fig. 3 a section on line X X of Figs. 1 and 2.

In the' drawings, a is an open Hre grate of the slow combustion type, bis a boiler of any usual or suitable type Htted at the back of the grateso as to be exposed to the Hre therein, c is the oven fitted against theside of the open grate, b1 is the boiler Hue which is led upwards atthe. back to the front chamber 1 of a damper box d, the other and rearchamber Z2 of which -is connected by a Hue extension pipe 02 vto theoven Hue o1, which passes around the oven in the usual way.

At the side of the open grate aan opening 03 is provided communicatingwith a Hue 04 lwhich opens into the oven Hue 01 beneath the oven.

The damper box d isHtted with a sliding damper Z3 adapted to cover oneor other of the chambers Z1 or d2. and there'- by open or closecommunication between the oven or boiler Hires-andthe chimney ev be,-yond.

This damper d3 is connected by a rod and bracket, or other suitableconnection 71, to the adjustable canopy al of the open grate; the saidcanopy is of any usual or suitable construction according to the type ofgrate selected, for example, in some types of canopy the dampers may beconnected to a cross bar fitted between the wings of the canopy insteadof being connected by a rod and bracket 7L as shown, to the shutterplate a? of the said canopy.

The said shutter plate a2 and the Hre brick back a3 of the. open stoveare so arranged that a minimum amount of opening is left at a* when thecanopy and shutter plate are pushed inwards Ito their full extent.

It will be seen that in use. the canopy a1 of the open grate is utilizedfor opening or closing the oven Hue or the boiler Hue by means of thedamper d3, thus allowing the three Hues to be controlled by the movementof the one part, the open Hre Hue being never entirely closed owing tothe provision of the minimum opening a4.

By closing the canopy el the inward movement thereof through theconnection 72, slides the damper Z3 backwards until it covers the rearchamber Z2 of the damper box l and thus shuts oH the oven Hue, and theheat instead of passing to the oven passes through the boiler Hue 51 andchamber all to the chimney e the minimum opening t4 still remainingabove the open grate.

By opening the canopy the damper d3 is drawn forward so as to cover thechamber Z1 and thus open the oven Hue to the chimney e and close theboiler flue b1; the heat novT passes by the aperture c3, fine c4 underthe oven to the center'thereof and then around the oven body by flue c1and extension c2 to the chamber (Z2 and thus to the chimney e.

The opening andv closing of the canopy al thus effectively regulates theopen fire and the boiler and oven iiues as required.

Amongst other advantages of the construction shown it may be mentionedthat the same damper box with demper is suitable for a large or smalloven and the iron cheek will suit. large. or small ovens, thel brickworkflue beneath the oven being altered accordingly. The flow `and returnpipes oi the boiler may be connected to existing circulating pipes atthe right or left hand of the chimney breast.

No bolts or screws need be provided to liX the oven to the. stove as theoven rest-s on the base part which is provided with the central iiue 0*and the connection toy the lue extension 02 is by a socket such as 05.

The boiler may be of any ordinary stock pattern, and the open stove maybe of the slow combustion type with fire brick sections at back andsides whereby fuel is economized and the heat is radiated into the room.

What I claim as my invention and desire to secure by Letters Patent isl. A stove consisting of the combination ett' an open ire grate providedwith an adjustable canopy or the like, an oven, and a boiler, iues forsaid oven and boiler opening together in the chimney, a damper slidableto close either said oven or said boilerI flue and connected to thecanopy so as to be operated by the opening and closing movement thereof,substantially as set forth.

2. A stove consisting of the combination of an open lire grate providedwith an adjustable canopy having a bracket fitted there to, an oven, anda boiler, ilues for said oven and boiler opening together in thechimney, a movable plate having' a rod connection to the bracket of thecanopy and capable ot' closing or opening the oven and boiler lines byraising or lowering said canopy, substantially as set forth.

3. A stove as in claim 2, provided with. a divided damper box and dampercovering the exits of the boiler and oven lues into the chimney,substantially as set forth.

Dated the ist day of J une, 1923.

GEORGE HENRY PRESTON.

